It has nearly been two years since Sony released the WF-1000XM3, which remain its flagship pair of TWS earbuds. Bluetooth SIG and FCC certifications suggest that Sony is preparing to release a new model though and one with a newer SoC that supports Bluetooth 5.2. There will be no aptX or aptX HD support, but LDAC may be coming the way of the WF-1000XM4.
https://www.notebookcheck.net/The-Sony-WF-1000XM4-takes-another-step-closer-to-release-with-Bluetooth-SIG-and-FCC-certifications-new-MediaTek-SoC-with-Bluetooth-5-2-onboard-rules-out-aptX-or-aptX-HD-support.531036.0.html
Me and my wife have still the WF-1000XM3, which are awesome, but the XM4 might fit my wife's ears a bit better.
👍🙂👍
Hope they at least include hybrid noise cancellation and imporove battery life.